Plant cells are different from animal cells because they are usually — A.
rectangular in shape, contain a small vacuole, and have mitochondria.
B.
circular in shape, contain ribosomes, and have centrioles.
C.
circular in shape, contain lysosomes, and have mitochondria.
D.
rectangular in shape, contain a large vacuole, and have chloroplasts.

Joe is breeding cockroaches in his dorm room. he finds that the average wing length in his population of cockroaches is 4 cm. he chooses the six cockroaches that have the largest wings; the average wing length among these selected cockroaches is 10 cm. joe interbreeds these selected cockroaches. from earlier studies, he knows that the narrow-sense heritability for wing length in his population of cockroaches is 0.6. a. calculate the selection differential and expected response to selection for wing length in these cockroaches. b. what should be the average wing length of the progeny of the selected cockroaches?

Consider the model of the oxygen cycle on earth. the majority of earth's oxygen reservoirs are found in the a) atmosphere. b) biosphere. c) hydrosphere. d) lithosphere.

Which entry is in the wrong position in the table?